What up Pinnacle?
I have never used it, but the other mailers i know that do, all send GI, not sure about TLD's. They all seem to like it for GI though...... I know another guy that good with that platform, i'll pick his brain for ya.........

It can mail TLD just fine. It takes some tweeking, but I know some yahoo mailers that smash it with Robomail. The same is true with AOL. I've personally used it for both with good results, but since Kieth left I dunno about them any more. He was 100% awesome.

Been using it for years and built lots of addons to it...was happy from it but u must put good tech support for it...it's a bit complicated. Buy it's superfast and u can touch the php and customize it..that the benefits.
Now I have my own solution so I don't need it...

Keith has moved on to a different angle with mailing and is working for adknowledge now. He still uses and loves RoboMail everyday. Keith was part of our support team, but Inter7 is still operated by the creators and developers of RoboMail. And I should know, I am co-owner of Inter7 and Keith's sister. Cheers!